Bug 677713

Summary:	virtio_console is module for x86_64 but is builtin into i386
Product:	[Fedora] Fedora	Reporter:	Martin Sivák <msivak>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	akozumpl, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone:	---	Keywords:	Reopened
Target Release:	---
Hardware:	Unspecified
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-03-08 23:08:49 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	672527

Description Martin Sivák 2011-02-15 16:23:21 UTC

Description of problem:

I believe modules should be consistent between arches, so the virtio_console should be built-in or module on all arches.

Currently it is built-in into i386 but appears as module in x86_64.

See https://bugzilla.redhat.com/show_bug.cgi?id=672527#c23 where we encountered it.

Comment 1 Chuck Ebbert 2011-02-16 17:00:06 UTC

Switched to built-in on x86_64.

Comment 2 Fedora Update System 2011-02-17 05:59:15 UTC

kernel-2.6.38-0.rc5.git1.1.fc15 has been submitted as an update for Fedora 15.
https://admin.fedoraproject.org/updates/kernel-2.6.38-0.rc5.git1.1.fc15

Comment 3 Fedora Update System 2011-02-18 06:56:14 UTC

kernel-2.6.38-0.rc5.git1.1.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Ales Kozumplik 2011-02-22 10:20:40 UTC

Chuck,

I downloaded the 2.6.38-0.rc5.git7.1.fc15.x86_64 kernel from koji, the virtio_console module is present as a .ko and none of the virtio modules is mentioned in modules.builtin (the i386 kernel has virtio_console.ko, virtio.ko and virtio_ring.ko there).

Did the patch slip somehow?

Comment 5 Chuck Ebbert 2011-02-24 14:46:28 UTC

Yeah, the whole virtio configuration in the kernel is just screwed up.

VIRTIO and VIRTIO_RING are not user-selectable, they are supposed to be autoselected by anything that needs them. But VIRTIO_CONSOLE has a dependency on those instead of autoselecting them. And VIRTIO_PCI and VIRTIO_BALLOON autoselect them and are both modular, so VIRTIO gets set to modular and forces VIRTIO_CONSOLE to modular as well.

On i386, LGUEST_GUEST is a bool and selects VIRTIO, VIRTIO_RING and VIRTIO_CONSOLE, so those are all forced to built-in.

Comment 6 Chuck Ebbert 2011-02-26 01:04:09 UTC

OK, this should really be fixed in 2.6.38-0.rc6.git6.1, which is building now.